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Diffstat (limited to 'src/host/layer23/src/mobile/gsm48_rr.c')
-rw-r--r--src/host/layer23/src/mobile/gsm48_rr.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/src/host/layer23/src/mobile/gsm48_rr.c b/src/host/layer23/src/mobile/gsm48_rr.c
index c600d86e..2f32d9a1 100644
--- a/src/host/layer23/src/mobile/gsm48_rr.c
+++ b/src/host/layer23/src/mobile/gsm48_rr.c
@@ -363,6 +363,8 @@ static void new_rr_state(struct gsm48_rrlayer *rr, int state)
stop_rr_t_starting(rr);
/* stop handover timer */
stop_rr_t3124(rr);
+ /* stop faking measurement report */
+ rr->hando_fake_report = 0;
}
rr->state = state;
@@ -2830,6 +2832,17 @@ static int gsm48_rr_tx_meas_rep(struct osmocom_ms *ms)
serv_rxqual_full = serv_rxqual_sub = 0; // FIXME
}
+ /* fake serving cell, if wanted */
+ if (rr->hando_fake_report) {
+ struct gsm322_cellsel *cs = &ms->cellsel;
+
+ if (rr->hando_fake_report_arfcn == cs->sel_arfcn)
+ serv_rxlev_full = serv_rxlev_sub = 63; /* -47 dBm */
+ else
+ serv_rxlev_full = serv_rxlev_sub = 10; /* -100 dBm */
+ serv_rxqual_full = serv_rxqual_sub = 0; // quality is ok
+ }
+
memset(&rxlev_nc, 0, sizeof(rxlev_nc));
memset(&bsic_nc, 0, sizeof(bsic_nc));
memset(&bcch_f_nc, 0, sizeof(bcch_f_nc));
@@ -2870,6 +2883,15 @@ static int gsm48_rr_tx_meas_rep(struct osmocom_ms *ms)
rxlev_nc[n] = rrmeas->nc_rxlev_dbm[index] + 110;
bsic_nc[n] = rrmeas->nc_bsic[index];
bcch_f_nc[n] = index;
+
+ /* fake neighbor cell, if wanted */
+ if (rr->hando_fake_report) {
+ if (rr->hando_fake_report_arfcn
+ == rrmeas->nc_arfcn[index])
+ rxlev_nc[n] = 63; /* -47 dBm */
+ else
+ rxlev_nc[n] = 10; /* -100 dBm */
+ }
}
}
@@ -4730,6 +4752,30 @@ static int gsm48_rr_rx_phys_info(struct osmocom_ms *ms, struct msgb *msg)
return gsm48_rr_resume_after_handover(ms);
}
+/* force handover to given ARFCN, by faking measurement report */
+const char *gsm48_rr_force_handover(struct osmocom_ms *ms, uint16_t arfcn)
+{
+ struct gsm48_rrlayer *rr = &ms->rrlayer;
+ struct gsm48_rr_meas *rrmeas = &rr->meas;
+ int i;
+
+ if (rr->state != GSM48_RR_ST_DEDICATED)
+ return "No dedicated connection";
+
+ if (rrmeas->nc_num == 0)
+ return "No Neighbor cells given by BTS";
+
+ for (i = 0; i < rrmeas->nc_num; i++) {
+ if (rrmeas->nc_arfcn[i] == arfcn) {
+ rr->hando_fake_report = 1;
+ rr->hando_fake_report_arfcn = arfcn;
+ return 0;
+ }
+ }
+
+ return "Given ARFCN is not a neighbor cell";
+}
+
/*
* radio ressource requests
*/